For those seeking hope and understanding in the hopeless meaninglessness of their – or someone else's – depression.

Why do people get depressed during winter? Odds are you've heard of seasonal affective disorder, or you've experienced it for yourself. Fittingly abbreviated "SAD," this periodic melancholy is most often seen in Northern latitudes with the long nights and short days of nature's coldest season.

While they're perhaps less likely to take up paragliding or get an ill-advised tattoo, it appears that other primates suffer from midlife crises just like Homo sapiens. A new study of chimps and orangutans found that they have a major dip in well-being during their middle years.

What incredibly important profession combines horrible hours, bad pay, and a poor lifestyle? Truck driving. This is a job that destroys so many lives that it could soon become unsustainable. Here's why.

Earlier this year, a study published in the journal Personality and Social Psychology Bulletin suggested that Facebook was making its users sad. The authors of the paper, titled "Misery Has More Company Than People Think," claimed that the constant barrage of positive depictions were making people feel inadequate, thus…

Vitamin D could be a miracle worker, when it comes to treating some of the most common ailments that afflict Americans, such as depression and diabetes. But it could also cause some serious problems, if you get too much of it.

Scientists this week published a study that reveals what the human brain looks like under the influence of psilocybin, the hallucinogenic chemical found in magic mushrooms.

Depression is the most common mental illness, but there's still a lot we don't know about how the condition affects the brain. But now, a new MRI study reveals that depression deactivates vital pieces of brain circuitry... including, surprisingly, the region that controls hatred.

After the doctor has finally diagnosed your problem — whether it's high blood pressure or low serotonin levels — nothing is worse than drug price sticker shock. How could a prescription possibly cost so much? It's nearly ten times as much as that other drug that supposedly does the exact same thing.

It's possible that depression could be cured by reducing mild swelling in your brain. Neuroscientists have linked depression to brain inflammation before, and now a new study suggests further evidence for this theory. Here you can see the distinctive signature of a glial cell responding to swollen tissue in a brain —…